[특허]Low-rate speech coder for non-speech data transmission

[미국특허] Low-rate speech coder for non-speech data transmission 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	G10L-019/00
출원번호	US-0333890 (1999-06-15)
발명자 / 주소	Fredrik Jansson SE Erik Ekudden SE Karl Hellwig DE Tomas Frankkila SE
출원인 / 주소	Telefonaktiebolaget LM Ericsson (publ) SE
대리인 / 주소	Burns, Doane, Swecker & Mathis, L.L.P.
인용정보	피인용 횟수 : 53 인용 특허 : 4

초록 ▼

Low rate data signals, such as standard TTY signals and standard DTMF signals, can be effectively analyzed and encoded by speech encoders employed in conventional digital cellular system. This is accomplished by providing a low rate data encoder in the transmission path of the low rate data signal, just prior to the speech encoder used by the digital cellular system. In so doing, the standard, low rate data signal is transformed (i.e., modified) by the low rate data encoder into a signal that is more compatible with the speech encoder. Similarly, a low rate data decoder is provided at the receiving end of the transmission path to decode the modified, low rate data signal.

대표청구항 ▼

1. In a digital cellular system, a speech encoding system capable of encoding and transmitting both speech signals and low rate data signals comprising:a low rate data source capable of generating low rate data signals; a low rate data encoder for receiving the low rate data signals and transforming the low rate data signals into modified low rate data signals; and a speech encoder for receiving and encoding both speech signals and modified low rate data signals, prior to the signals being transmitted over a corresponding communications link, wherein the low rate data encoder transforms the low rate data signals so that they are specifically compatible with the speech encoder.

이 특허에 인용된 특허 (4) 인용/피인용 타임라인 분석

Chung Min I., Asymmetric speech coding for a digital cellular communications system.
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Tanaka Hirokazu,JPX, Radio communication system using TDD scheme.
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Paneth Eric,ILX ; Handzel Mark J. ; Morley Steven Allan ; Avis Graham M., Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or.
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Paneth Eric,ILX ; Handzel Mark J. ; Morley Steven Allan ; Avis Graham M., Subscriber RF telephone system for providing multiple speech and/or data signals simultaneously over either a single or a plurality of RF channels.
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이 특허를 인용한 특허 (53) 인용/피인용 타임라인 분석

Birmingham, Kiley, Adaptive data transmission for a digital in-band modem operating over a voice channel.
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Joetten, Christoph A.; Sgraja, Christian; Frank, Georg; Huang, Pengjun; Pietsch, Christian; Werner, Marc W.; Duni, Ethan R.; Baik, Eugene J., Apparatus and method of obtaining non-speech data embedded in vocoder packet.
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Hong, Leon L.; Quimby, David; Johnson, Ken, Automatic gain control.
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Quimby, David; Johnson, Ken; Hong, Leon L., Automatic gain control in a navigation device.
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Arslan, Guner, Communication apparatus including a demodulator having a tone detection mechanism.
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Chesnutt, Elizabeth; Yin, Jijun; Madhavan, Sethu K.; Surti, Iqbal M., Data communication via a voice channel of a wireless communication network using discontinuities.
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Engelke, Robert M.; Colwell, Kevin R.; Vitek, Troy D., Device independent text captioned telephone service.
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Engelke, Robert M.; Colwell, Kevin R.; Vitek, Troy D., Device independent text captioned telephone service.
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Birmingham, Kiley, Echo cancellation in wireless inband signaling modem.
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Birmingham, Kiley; Hong, Leon L., Efficient error correction scheme for data transmission in a wireless in-band signaling system.
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Marke, Matthias; Xu, Wen, Error processing of user information received by a communication network.
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Fournier,Andre F. A.; Jahani,Allen A.; Sawyer,Michael S.; Grant,Stephen M., Facility and method for wireless transmission of location data in a voice channel of a digital wireless telecommunications network.
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Preston, Dan A.; Preston, Joseph D.; Leyendecker, Robert; Eatherly, Wayne; Proctor, Rod L.; Smith, Phillip R., In-band signaling for data communications over digital wireless telecommunications networks.
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Swaminathan, Kumar; Bhaskar, Udaya, In-band transmission of TTY/TTD signals for systems employing low bit-rate voice compression.
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Hong, Leon, In-vehicle system (IVS) control of emergency data communications.
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Hong, Leon, In-vehicle system (IVS) control of emergency data communications.
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Jones, Paul Edwin; Kumar, Rajesh, Method and apparatus for interworking dissimilar text phone protocols over a packet switched network.
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Chesnutt, Elizabeth; Yin, Jijun; Madhavan, Sethu; Surti, Iqbal, Method for data communication via a voice channel of a wireless communication network.
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Madhavan, Sethu K.; Surti, Iqbal M.; Yin, Jijun, Method for data communication via a voice channel of a wireless communication network.
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Chesnutt, Elizabeth; Yin, Jijun; Madhavan, Sethu; Surti, Iqbal, Method for data communication via a voice channel of a wireless communication network using continuous signal modulation.
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Preston, Dan A.; Preston, Joseph; Leyendecker, Robert; Eatherly, Wayne; Proctor, Rod L., Method for in-band signaling of data over digital wireless telecommunications networks.
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Preston,Dan A.; Preston,Joseph; Leyendecker,Robert; Eatherly,Wayne; Proctor,Rod L., Method for in-band signaling of data over digital wireless telecommunications networks.
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Fournier, Andre F. A.; Jahani, Allen A.; Sawyer, Michael S.; Grant, Stephen M., Method for pulling geographic location data from a remote wireless telecommunications mobile unit.
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Hirano, Michael, Methods for in-band signaling through enhanced variable-rate codecs.
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Hirano, Michael; Birmingham, Kiley; Zhao, Lee; Quimby, David, Methods for in-band signaling through enhanced variable-rate codecs.
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Lang, Heikki; Jääskcläincn, Satu; Karjalainen, Scppo; Aaltoncn, Olli; Kaikuranta, Terho; Vuori, Petri, Mobile station with audio signal adaptation to hearing characteristics of the user.
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Fournier,Andr�� F. A.; Jahani,Allen A.; Sawyer,Michael S.; Grant,Stephen M., Remote method for wireless transmission of location data.
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Smith,Philip Ray, Simultaneous voice and data modem.
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Preston,Dan A.; Preston,Joseph D.; Leyendecker,Robert; Eatherly,Wayne; Proctor,Rod L.; Smith,Philip R., Synchronizer for use with improved in-band signaling for data communications over digital wireless telecommunications networks.
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Keagy, Scott C., System and method for communicating text teletype (TTY) information in a communication network.
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Sgraja, Christian; Joetten, Christoph A; Werner, Marc W; Pietsch, Christian, System and method for obtaining a message type identifier through an in-band modem.
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Pietsch, Christian; Sgraja, Christian; Joetten, Christoph A; Leung, Nikolai K.; Werner, Marc W; Granzow, Wolfgang, System and method for supporting higher-layer protocol messaging in an in-band modem.
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Pietsch, Christian; Sgraja, Christian; Joetten, Christoph A; Leung, Nikolai K.; Werner, Marc W; Granzow, Wolfgang, System and method for supporting higher-layer protocol messaging in an in-band modem.
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Huang, Pengjun; Pietsch, Christian; Sgraja, Christian; Frank, Georg; Joetten, Christoph A.; Werner, Marc W.; Granzow, Wolfgang, System and method of an in-band modem for data communications over digital wireless communication networks.
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Leung, Nikolai K. N.; Werner, Marc W.; Pietsch, Christian; Granzow, Wolfgang; Sgraja, Christian; Joetten, Christoph A.; Huang, Pengjun, System and method of an in-band modem for data communications over digital wireless communication networks.
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Pietsch, Christian; Frank, Georg; Sgraja, Christian; Huang, Pengjun; Joetten, Christoph A.; Werner, Marc W.; Granzow, Wolfgang, System and method of an in-band modem for data communications over digital wireless communication networks.
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Sgraja, Christian; Werner, Marc W.; Pietsch, Christian; Granzow, Wolfgang; Leung, Nikolai K N; Joetten, Christoph A.; Huang, Pengjun, System and method of an in-band modem for data communications over digital wireless communication networks.
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Werner, Marc W.; Pietsch, Christian; Sgraja, Christian; Granzow, Wolfgang; Leung, Nikolai K N; Joetten, Christoph A.; Huang, Pengjun, System and method of an in-band modem for data communications over digital wireless communication networks.
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Vejlgaard,Benny Niels, System for and method of detecting a connection of a text telephony (TTY) device to a mobile phone.
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Engelke, Robert M; Colwell, Kevin R, System for text assisted telephony.
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Engelke, Robert M; Colwell, Kevin R, System for text assisted telephony.
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Engelke, Robert M; Colwell, Kevin R, System for text assisted telephony.
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Engelke, Robert M; Colwell, Kevin R, System for text assisted telephony.
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Engleke, Robert M.; Colwell, Kevin R., System for text assisted telephony.
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Dorbecker, Matthias; Hellwig, Karl, Universal TTY/TDD devices for robust text and data transmission via PSTN and cellular phone networks.
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Garrett, Darrin; Hong, Leon L., Using a bluetooth capable mobile phone to access a remote network.
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Garrett, Darrin; Hong, Leon L., Using a bluetooth capable mobile phone to access a remote network.
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Moinzadeh, Kamyar; Garret, Darrin L.; Quimby, David C., Voice channel control of wireless packet data communications.
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Moinzadeh, Kamyar; Garrett, Darrin L.; Quimby, David C., Voice channel control of wireless packet data communications.
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Moinzadeh,Kamyar; Garret,Darrin L.; Quimby,David C., Voice channel control of wireless packet data communications.
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Yue, Peter P., Wireless communication device capable to transmit/receive TTY/TDD messages with variable data rate, embedded into audio data frames.
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Birmingham, Kiley, Wireless in-band signaling with in-vehicle systems.
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Birmingham, Kiley, Wireless in-band signaling with in-vehicle systems.
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[미국특허] Low-rate speech coder for non-speech data transmission 원문보기